Home / 45,995.76-68,931.24-21,004.82

Finding the Fourth Proportional to 45,995.76, 68,931.24 and 21,004.82

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Solution

The fourth proportional to 45,995.76, 68,931.24 and 21,004.82 is: 31,478.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,995.76 : 68,931.24 = 21,004.82 : x
  2. Step 2: Convert to fraction form
    45,995.76/68,931.24 = 21,004.82/x
  3. Step 3: Cross multiply
    45,995.76x = 68,931.24 × 21,004.82
  4. Step 4: Simplify right side
    45,995.76x = 1,447,888,288.58
  5. Step 5: Solve for x
    x = 1,447,888,288.58/45,995.76
  6. Step 6: Final answer
    x = 31,478.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.